diff --git a/cc/private/toolchain/unix_cc_toolchain_config.bzl b/cc/private/toolchain/unix_cc_toolchain_config.bzl
index 2f2c3cae..e087d25b 100644
--- a/cc/private/toolchain/unix_cc_toolchain_config.bzl
+++ b/cc/private/toolchain/unix_cc_toolchain_config.bzl
@@ -1371,6 +1371,7 @@ def _impl(ctx):
                 flag_groups = [
                     flag_group(
                         flags = [
+                            "-D",
                             "-no_warning_for_no_symbols",
                             "-static",
                             "-o",
diff --git a/cc/toolchains/args/archiver_flags/BUILD b/cc/toolchains/args/archiver_flags/BUILD
index eb49e318..35dce521 100644
--- a/cc/toolchains/args/archiver_flags/BUILD
+++ b/cc/toolchains/args/archiver_flags/BUILD
@@ -39,6 +39,7 @@ cc_args(
     actions = ["//cc/toolchains/actions:ar_actions"],
     args = select({
         ":use_libtool_on_macos_setting": [
+            "-D",
             "-no_warning_for_no_symbols",
             "-static",
         ],
diff --git a/tests/rule_based_toolchain/legacy_features_as_args/goldens/macos/archiver_flags.textproto b/tests/rule_based_toolchain/legacy_features_as_args/goldens/macos/archiver_flags.textproto
index d382643b..0fbbf08d 100644
--- a/tests/rule_based_toolchain/legacy_features_as_args/goldens/macos/archiver_flags.textproto
+++ b/tests/rule_based_toolchain/legacy_features_as_args/goldens/macos/archiver_flags.textproto
@@ -2,6 +2,7 @@ enabled: false
 flag_sets {
   actions: "c++-link-static-library"
   flag_groups {
+    flags: "-D"
     flags: "-no_warning_for_no_symbols"
     flags: "-static"
   }